Device for purifying, cooling, and mixing gases



July 23, 1940. R I 2,208,743

DEVICE FOR PURIFYING, COOLING, AND MIXING GASES I Filed July 27, 1938 2 Sheets-Sheet l INVENTOR- MAX AURIG M IQKMQF ATTORN EVS July 1940- M. AURIG I 2,208,743

DEVICE FOR PURIFY ING, COOLING, AND MIXING GASES Filed July 27, 1938 2 Sheets-Sheet 2 INVENTOR ATTOR N Eys Patented July 23, 1940 DEVICE FOR PURIFYING, COOLING, 'AND 1 MIXING GASES Max Aurig, Munich, Germany Application July 27, 1938, Serial No. 221,517 In Germany July 29, 1937 1 Claim.

This invention relates to a disintegrator device for purifying, cooling and mixing gases, ofthe general type disclosed in U. S. Patent No. 1,052,188, granted to Hans Eduard Theisen on February 4, 1913.

In the known types of disintegrator-like gas washers the inner structure comprises stationary baskets, usually consisting of a plurality of rows of round bars, and rotary baskets made up either of rounds or tubes or of flat or angle bars. Outside the rotary baskets vanes are provided to draw or force the gas to be cleaned through the apparatus and to produce a greater or lesser increase in pressure for conveying the purified gas.

The rotary bars themselves produce also a certain increase in pressure which depends upon their shape, round bars or tubes having the least effect in this respect. Angle bars also produce little pressure owing to the formation of aerodynamically unfavorable eddies which tend to decrease the generation of pressure. Flat bars yield the relatively best results. This increase in pressure can be computed according to the following formula:

uZ-u? g 11.2 representing the peripheral speed of the bar relative to the outer diameter 112; m, the peripheral speed of the bar relative to the inner diameter 1; and g, the acceleration due to gravity.

Theincrease in pressure obtainable thereby is, however, so slight that special vane arrangements are required to subject the gas to be cleaned to more or less pressure.

In contrast with this known construction, it is an object of the present invention to construct the rotary disintegrator bars in such manner that they can simultaneously serve effectively as disintegrator members and as pressure generating members.

The invention is illustrated by Way of example in the accompanying drawings, in which Figure l is a pressure diagram relating to the use of one form of 'disintegrato'r bar according to the present invention;

Fig. 2 is a partial View of a disintegrator having stationary bars and a rotary basket provided with bars according to an embodiment of this invention;

Fig. 3 is a section on the line II-II, of Fig. 2; and

Fig. 4 is a view of a bar system seen from above.

According to the present invention, as illustrated diagrammatically in Fig. 1, the rotary disintegrator bars are constructed in such manner that they simultaneously serve as disintegrator and pressure generating members, by being curved like fan blades. The angle of outlet a2 shown in Fig. 1 may amount to 90, or may be greater or smaller than that, the maximum increase in pressure being attained when the angle a2 is smaller than 90. The generation of pressure by such a bar is computed according to the formula The use in the purifying device of a disintegrator gas washer as pressure generator permits me to dispense with the special pressure vanes outside the disintegrator, or at least to make them much smaller. -Since the speed of the washing liquid injected into the gas washer must be brought up to the circumferential speed of the extreme diameter of the rotor, at the expenditure of a considerable portion of the power required forthe washer, a reduction of the outer diameter of the rotor naturally essentially affects the general power consumption of the washer.

A further saving in power is effected owing to the fact that the curved rotating disintegrator bars provide better conditions of flow for both the gas and the washing liquid, at a lower loss due to impact than in the case of the usual round, flat or angle bars, etc.

In case considerations of strength do not permit the use of bars extending over the entire width of high speed apparatus, the curved bars can be subdivided several times according to the intensity of stress and the quality of the material employed.

In the construction shown in Fig. 2, I is a shaft on which a disc 2 is placed to which the rotary bars 3 are secured at one end, for instance, as indicated in Fig. 4, by means of the straps 4 and screws 5, so as to form a circle. When they continuously extend over the entire cross section of the washer, the bars 3 are held together at the other end bymeans of rings 6. In case of larger dimensions the bars 3 are preferably subdivided and thus comprise a plurality of units, as shown in Figs. 2 to 4. Fig. 4 in particular indicates that several rings 1, in addition to the outer ring 6, are required to hold between them bar portions -8. The form of these bars, shown in Fig. 3, is chosen in view of the fact that they are adapted to produce pressure in the apparatus. Consequently, the various bar members 8 have a curved shape and are provided at their PATENT orrlcs ends with straps 4, angularly projecting to one side or the other, by means of which the members 8 are riveted or otherwise secured to the rings 6. Between these bar systems, cooperating in the rotation of the shaft I and disc 2, a stationary bar structure is provided. This structure comprises a disc 9 inserted in a casing ID of the device and having secured to it bars H which are externally held together by rings, l2. These bars may have any digired form and comprise, for instance, tubes, fiat or angle bars, etc. This stationary structure, however, is not absolutely necessary unless, for instance, very exacting demands have to be met as to the purity of the gas. Otherwise, the washer may be equipped 

